In response to claims connecting Endosulfan with human disorders in Kerala and Dakshina Kannada, six committees and expert groups including representatives from health, environment and agriculture departments were set up by the Govt of Kerala, Govt of India and the Govt of Karnataka to investigate into the reported linkage of Endosulfan with the various incidences of adverse health effects. Each committee has concluded that none of the alleged victims were proven to be affected by Endosulfan. The findings of these committees have been methodically dismissed and barely presented in the media.
Many NGOs have produced reports linking Endosulfan to adverse health problems including cancer, infertility, birth defects and neurotic disorder. These reports were based on the National Institute of Occupational Health (NIOH) report which is proved to have been flawed. Despite this, international conventions and regulatory authorities worldwide have referenced this report while reviewing Endosulfan in both, the Rotterdam and Stockholm conventions. Recently, the National Human Rights Commission has also demanded a nationwide ban on Endosulfan based on this faulty report. Media, polity and other vested interests are also pressuring the government into discontinuing the studies on Endosulfan as they are already aware of what the results would be.
NIOH Errors: The NIOH report of 2002 titled ‘Report of the investigations of unusual illnesses allegedly produced by Endosulfan exposure in Padre village, of Kasargode district (N. Kerala),’ had fundamental inconsistencies as was observed by scientists and experts.
Chemical residue analyses are performed on a sophisticated analytical instrument known as Gas Chromatography (GC) fitted with an Electron Capture Detector (ECD). Each GC-ECD has a lower limit for the minimum amount of a chemical that it can detect. This is expressed as Instrument Detection Limit (IDL). For the study under question, the NIOH had used GC-ECD (HP Model 6890) with the minimum IDL of 1 part per billion (1 ppb) for Endosulfan. In other words, the instrument used by the NIOH could not detect Endosulfan residues lower than 1 ppb. Yet, the NIOH report carries residue findings as low as 0.4 ppb and 0.5 ppb. Simply put, the residue levels reported by the NIOH fall below the minimum detection limit of the instrument used. These findings are scientifically indemonstrable, and are false and incorrect claims.
Since, the raw data recorded by the NIOH for generating Endosulfan residue data in water, soil and blood samples were fundamentally flawed, its subsequent analysis is even more peculiar. For instance, the table no. 4 in the report shows the total Endosulfan (ppb) in six samples as 0.030 ± 0.18. Annexure -8 shows β Endosulfan residues as 0.0005± 0.001. It may be observed here is that the standard deviation goes beyond the mean (average) by up to 500 per cent.
Modern GC-ECDs are fitted with computers that process the data gathered from the detectors into chromatograms and finally produce an easy-to-view report. Normal practices of a residue-testing laboratory require that copies of chromatograms of analysed samples are retained and stored in the laboratory/computer for future reference in case of any dispute. Therefore, letters were sent to NIOH under Right to Information Act (RTI Act) seeking copies of chromatograms relevant to this study. NIOH did not respond to requests for parting with raw data until the intervention of the Chief Information Commissioner. The case was heard at the Information Commission and it took three hearings and two orders by the Chief Information Commissioner for NIOH’s appellate authority to finally handover the 1,700 pages of raw data. The varying and inconsistent excuses given by the NIOH while refusing required information under the RTI Act were revealing signs of a cover-up. On examining the data, experts learned that the analysis conducted by NIOH had sure laboratory failings. The conclusions drawn did not corroborate with the raw data and the complete analysis is now being believed to be forged.
Source: http://whybanendosulfan.org/facts-vs-myths.htm
Many NGOs have produced reports linking Endosulfan to adverse health problems including cancer, infertility, birth defects and neurotic disorder. These reports were based on the National Institute of Occupational Health (NIOH) report which is proved to have been flawed. Despite this, international conventions and regulatory authorities worldwide have referenced this report while reviewing Endosulfan in both, the Rotterdam and Stockholm conventions. Recently, the National Human Rights Commission has also demanded a nationwide ban on Endosulfan based on this faulty report. Media, polity and other vested interests are also pressuring the government into discontinuing the studies on Endosulfan as they are already aware of what the results would be.
NIOH Errors: The NIOH report of 2002 titled ‘Report of the investigations of unusual illnesses allegedly produced by Endosulfan exposure in Padre village, of Kasargode district (N. Kerala),’ had fundamental inconsistencies as was observed by scientists and experts.
Chemical residue analyses are performed on a sophisticated analytical instrument known as Gas Chromatography (GC) fitted with an Electron Capture Detector (ECD). Each GC-ECD has a lower limit for the minimum amount of a chemical that it can detect. This is expressed as Instrument Detection Limit (IDL). For the study under question, the NIOH had used GC-ECD (HP Model 6890) with the minimum IDL of 1 part per billion (1 ppb) for Endosulfan. In other words, the instrument used by the NIOH could not detect Endosulfan residues lower than 1 ppb. Yet, the NIOH report carries residue findings as low as 0.4 ppb and 0.5 ppb. Simply put, the residue levels reported by the NIOH fall below the minimum detection limit of the instrument used. These findings are scientifically indemonstrable, and are false and incorrect claims.
Since, the raw data recorded by the NIOH for generating Endosulfan residue data in water, soil and blood samples were fundamentally flawed, its subsequent analysis is even more peculiar. For instance, the table no. 4 in the report shows the total Endosulfan (ppb) in six samples as 0.030 ± 0.18. Annexure -8 shows β Endosulfan residues as 0.0005± 0.001. It may be observed here is that the standard deviation goes beyond the mean (average) by up to 500 per cent.
Modern GC-ECDs are fitted with computers that process the data gathered from the detectors into chromatograms and finally produce an easy-to-view report. Normal practices of a residue-testing laboratory require that copies of chromatograms of analysed samples are retained and stored in the laboratory/computer for future reference in case of any dispute. Therefore, letters were sent to NIOH under Right to Information Act (RTI Act) seeking copies of chromatograms relevant to this study. NIOH did not respond to requests for parting with raw data until the intervention of the Chief Information Commissioner. The case was heard at the Information Commission and it took three hearings and two orders by the Chief Information Commissioner for NIOH’s appellate authority to finally handover the 1,700 pages of raw data. The varying and inconsistent excuses given by the NIOH while refusing required information under the RTI Act were revealing signs of a cover-up. On examining the data, experts learned that the analysis conducted by NIOH had sure laboratory failings. The conclusions drawn did not corroborate with the raw data and the complete analysis is now being believed to be forged.
Source: http://whybanendosulfan.org/facts-vs-myths.htm
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